Hundreds of cartons of children's orange juice have been recalled after they were found to contain contaminated water. Drinks manufacturer PepsiCo is recalling 277 multipacks of Tropicana Kids orange juice affected by "microbiological contamination", the Food Standards Agency (FSA) said.

The drinks were contaminated following a "test procedure" and the watchdog has advised consumers not to drink the affected batches. Shops that sold the drinks will display notices urging customers to return them.

The FSA said the affected cartons could be distinguished by a lack of batch or date codes, either on the exterior or interior of the packaging. Customers who have bought the affected cartons can call the freephone helpline 0800 032 4460 for a full refund.

• This article was amended on 3 May 2012. It originally referred to the company as Pepsi and included an image of the wrong Tropicana product. These have been corrected.